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225496825 = 5223413853
BaseRepresentation
bin11010111000011…
…00111011111001
3120201022102111021
431130030323321
5430211344300
634213102441
75405456101
oct1534147371
9521272437
10225496825
11106318114
1263627a21
1337943698
1421d3c201
1514be3d1a
hexd70cef9

225496825 has 12 divisors (see below), whose sum is σ = 279808108. Its totient is φ = 180273600.

The previous prime is 225496819. The next prime is 225496849. The reversal of 225496825 is 528694522.

It can be written as a sum of positive squares in 6 ways, for example, as 17214201 + 208282624 = 4149^2 + 14432^2 .

It is not a de Polignac number, because 225496825 - 213 = 225488633 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56599 + ... + 60451.

Almost surely, 2225496825 is an apocalyptic number.

225496825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225496825 is a deficient number, since it is larger than the sum of its proper divisors (54311283).

225496825 is a wasteful number, since it uses less digits than its factorization.

225496825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6204 (or 6199 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The square root of 225496825 is about 15016.5517013727. The cubic root of 225496825 is about 608.6675430509.

The spelling of 225496825 in words is "two hundred twenty-five million, four hundred ninety-six thousand, eight hundred twenty-five".

Divisors: 1 5 25 2341 3853 11705 19265 58525 96325 9019873 45099365 225496825